Sorry. I really screwed up the previous post about SSA. I have corrected ithere, I think.

> -----Original Message-----> From: Benson-John [mailto://jbens@casbah.acns.nwu.edu] > Sent: Monday, December 06, 1999 10:49 PM> To: geometry-pre-college@mathforum.com> Subject: Congruent triangles> > Actually, there is an angle, side side congruence relationship. I do not> think it is a postulate, I think it is a theorem. It is angle, small> side, large side. If the SIDE adjacent to the angle is smaller than> the SIDE opposite to the angle angle, or congruent to it, then the> triangles must be congruent because the opposite side cannot "swing" under> the angle to form two triangles. Hypotenuse leg is a special case of the> theorem. I always teach this to my students and then ask them why they> think it is not included in the text. I have found it useful in at least> one quite difficult problem I was trying to solve. > > > > John Benson> Evanston Township High School 715 South Boulevard> 1600 Dodge Avenue Evanston Il 60202-2907> Evanston IL 60204 847) 328-8019 (phone & fax)> (847) 424-7600 (847) 226-7713 ( cell)> >